# FFT vs n

The clearest difference is price: n at Free against FFT's $10.99. n also leads on rating (4.7 vs 4.0) and update cadence (every 2 weeks vs every 6 months). FFT's advantage is ads (none vs shown) and review sentiment (86% vs 76%). On in-app purchases, monetization model and device support there is nothing between them.

n is free to download; FFT costs $10.99 up front. FFT sells 1 one-off in-app purchase and n sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

n holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: n has 3.2K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 86% of FFT's written reviews are positive against 76% of n's, so the app with the better star average is not the one people write more warmly about.

FFT ships an update every 6 months, n every 2 weeks. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | FFT | n |
| --- | --- | --- |
| Price | $10.99 | **Free** |
| Rating | [4.0 (6 ratings)](https://appshunter.io/ios/app/fft/id298840058/reviews) | **[4.7 (3.2K ratings)](https://appshunter.io/ios/app/n-track-tuner/id409786458/reviews)** |
| Number of ratings | 6 | **3.2K** |
| Positive reviews | **86.1% of reviews** | 76.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 77 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [n-Track S.r.l.](https://appshunter.io/developer/402685768) |

## What reviewers say

### FFT

[App page](https://appshunter.io/ios/app/fft/id298840058)

Analyze audio with high-resolution frequency and amplitude graphs. Features include a signal generator, cursor readouts, and adjustable graph smoothing. Save and export your analysis results.

**Highlights:** High-resolution amplitude vs. frequency graph, Built-in low-distortion signal generator, Adjustable graph smoothing and decay time, Cursor readout for dB and frequency, Save and export analysis graphs and data, Peak tracking for highest frequency identification

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reference Curve Files | $9.99 | one-time |


### n

[App page](https://appshunter.io/ios/app/n-track-tuner/id409786458)

Easily tune a variety of musical instruments using your smartphone's microphone. Offers high precision with advanced audio recognition and multiple visual feedback modes. Supports manual tuning and calibration for custom needs.

**Highlights:** High precision tuning, Spectrum Analyzer, Instrument selection, Tune Fork reference tone, Needle tuner, Adjustable sensitivity and precision

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro features and remove ads | $12.99 | one-time |

**What reviewers like**

- ⭐ Accurate tuning
- 🎨 Useful visual feedback
- 📊 Detailed frequency analysis
- 🎶 Works well for various instruments
- 🆓 Reliable free version

**What reviewers complain about**

- 💰 Intrusive ads in free version
- 🔒 Paywall for advanced features
- 🔋 High battery consumption
- 🐛 Occasional bugs and crashes

**Reported bugs**

- Inaccurate note detection
- Freezing during use
- Compatibility issues with certain instruments

**Requested features**

- Option to remove ads
- Improved compatibility with lower-end devices
- More customization options


## Frequently asked questions

### Is FFT free?

FFT costs $10.99, and also offers in-app purchases.

### Is n free?

n is free to download, with in-app purchases available.

### Which has better reviews, FFT or n?

n is rated higher. FFT averages 4.0 out of 5 from 6 ratings, while n averages 4.7 from 3.2K ratings.

### Do FFT or n have ads?

n shows ads; FFT does not.

### Which is updated more often, FFT or n?

FFT ships an update every 6 months, and n every 2 weeks. Most recently, FFT was updated on September 27, 2026 and n on September 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*